At the risk of going off topic, I thought the HB D2 could run proline / losi wheels?
The rb5 can, the xxxcr can, the b4 can, the X6 can, the S2 can - are there ANY that can't?
Similar story in 4WD.
Anyway, the offset is the same, the car is designed to accept losi wheels from the outset - that's all anyone can ask really. The pin is going to be better than that crappy little losi hex anyway.